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Multiply and Divide Decimals by 10, 100, 1000 Worksheet

Speed calculation lesson 17: Decimal point jumps · Set 254 · 40 questions
TalentJR

The fast method (Jump the point): Count the zeros: 10 → 1 jump, 100 → 2 jumps, 1000 → 3 jumps. × moves the point right; ÷ moves it left. Run out of digits? Fill the gaps with 0s. Drop 0s at the end of a decimal: 3.40 is 3.4.

NameDateTime takenScore ___ / 40
  1. 1.92.1 ÷ 1000 =
  2. 2.246.1 × 100 =
  3. 3.254.4 ÷ 10 =
  4. 4.305.3 ÷ 10 =
  5. 5.128.5 ÷ 100 =
  6. 6.494.6 × 1000 =
  7. 7.299.1 ÷ 10 =
  8. 8.350.5 × 100 =
  9. 9.226.8 × 100 =
  10. 10.18.22 × 100 =
  11. 11.439.2 ÷ 1000 =
  12. 12.349.7 × 10 =
  13. 13.0.68 ÷ 10 =
  14. 14.371.1 ÷ 1000 =
  15. 15.270.9 × 10 =
  16. 16.271.9 × 10 =
  17. 17.291.5 ÷ 10 =
  18. 18.344.8 ÷ 10 =
  19. 19.21.41 × 10 =
  20. 20.355.6 ÷ 100 =
  21. 21.11.51 × 100 =
  22. 22.16.16 ÷ 100 =
  23. 23.354.4 ÷ 1000 =
  24. 24.6.02 × 10 =
  25. 25.29.89 ÷ 10 =
  26. 26.20.81 × 100 =
  27. 27.104.8 ÷ 100 =
  28. 28.6.31 ÷ 100 =
  29. 29.39.15 × 10 =
  30. 30.110.1 × 100 =
  31. 31.147.6 × 10 =
  32. 32.178.3 × 100 =
  33. 33.0.11 × 10 =
  34. 34.476.3 × 10 =
  35. 35.47.71 × 10 =
  36. 36.22.27 ÷ 1000 =
  37. 37.36.09 × 1000 =
  38. 38.29.7 × 100 =
  39. 39.352.5 × 100 =
  40. 40.23.9 ÷ 10 =

Answer key

  1. 0.0921
  2. 24610
  3. 25.44
  4. 30.53
  5. 1.285
  6. 494600
  7. 29.91
  8. 35050
  9. 22680
  10. 1822
  11. 0.4392
  12. 3497
  13. 0.068
  14. 0.3711
  15. 2709
  16. 2719
  17. 29.15
  18. 34.48
  19. 214.1
  20. 3.556
  21. 1151
  22. 0.1616
  23. 0.3544
  24. 60.2
  25. 2.989
  26. 2081
  27. 1.048
  28. 0.0631
  29. 391.5
  30. 11010
  31. 1476
  32. 17830
  33. 1.1
  34. 4763
  35. 477.1
  36. 0.02227
  37. 36090
  38. 2970
  39. 35250
  40. 2.39

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